Intelligent fuse comprising monitoring module

By performing time consistency verification and matching on the temperature and current signals of the fuse, abnormal interference is eliminated. Combined with temperature change analysis, the gradual characteristics before the fuse blows can be identified in advance, solving the problem of early warning lag in the existing technology and improving the safety and reliability of the equipment.

CN121633929AActive Publication Date: 2026-03-10JANDA ELECTRIC CO LTD
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Patent Information

Application Number
CN202610143567.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-02-02
Publication Date
2026-03-10
Estimated Expiration
2046-02-02

AI Technical Summary

Technical Problem

Existing condition monitoring technologies struggle to distinguish between normal and abnormal trends in current fluctuations and lack time correlation analysis, resulting in fuses remaining in an unidentifiable state for extended periods before tripping, leading to delayed early warnings, accumulated safety risks, and distorted equipment reliability assessments.

Method used

By collecting the fuse element temperature and current signals, performing analog-to-digital conversion, and generating a synchronous monitoring sequence, the mean and standard deviation of the current sampling values ​​are analyzed using a sliding window to eliminate abnormal interference. Combined with temperature change characteristics, the coupling offset is calculated to generate optimized fuse monitoring results.

Benefits of technology

It enables early identification of abnormal trends in fuses, improves the continuity of early warning and the reliability of operational decisions, reduces misjudgments, and supports continuous updates of status assessment.

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Abstract

The invention relates to the technical field of state monitoring, in particular to an intelligent fuse comprising a monitoring module, and the fuse comprises a data analysis module, a steady state recognition module, a temperature analysis module, a coupling calculation module and a state calibration module. According to the method, time consistency verification and corresponding matching are carried out on temperature and current sampling, abnormal interference is eliminated in a stable current-carrying interval, a continuous sequence is formed, and a definite time relation is established between thermal response and a current-carrying state by combining analysis of accumulated deviation and change turning of the temperature along with time; the abnormal trend of slow evolution is amplified and presented, correction is carried out according to the direction consistency of multi-segment time difference change, progressive features before fusing are recognized in advance, early warning continuity and operation decision reliability are improved, misjudgment is reduced, continuous updating of state evaluation is supported, and stability of a control closed loop is improved.
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